Struct zng :: icon :: ICONS Copy item path

impl ICONS

pub fn register(&self, icon: WidgetFn<IconRequestArgs>)

Register an icon handler.

The handler must return NilUiNode if it cannot handle the request. Later added handlers are called first.

pub fn register_fallback(&self, icon: WidgetFn<IconRequestArgs>)

Register an icon handler to be called if none of the register handlers can handle request.

The handler must return NilUiNode if it cannot handle the request. Later added handlers are called last.

pub fn get(&self, icon_name: impl IconNames) -> Box<dyn UiNodeBoxed>

Instantiate an icon drawing widget for the icon_name.

Returns NilUiNode if no registered handler can provide an icon.

pub fn get_or( &self, icon_name: impl IconNames, fallback: impl FnOnce() -> U, ) -> Box<dyn UiNodeBoxed>
where U: UiNode,

Instantiate an icon drawing widget for the icon_name or call fallback to do it if no handler can handle the request.

pub fn req(&self, icon_name: impl IconNames) -> Box<dyn UiNodeBoxed>

Same as get, but also logs an error is there are no available icon for any of the names.

pub fn req_or( &self, icon_name: impl IconNames, fallback: impl FnOnce() -> U, ) -> Box<dyn UiNodeBoxed>
where U: UiNode,

Auto Trait Implementations§

impl UnwindSafe for ICONS

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